428805650 has 96 divisors (see below), whose sum is σ = 995852928. Its totient is φ = 133747200.

The previous prime is 428805613. The next prime is 428805653. The reversal of 428805650 is 56508824.

It is not an unprimeable number, because it can be changed into a prime (428805653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 331505 + ... + 332795.

It is an arithmetic number, because the mean of its divisors is an integer number (10373468).

Almost surely, 2^428805650 is an apocalyptic number.

428805650 is an abundant number, since it is smaller than the sum of its proper divisors (567047278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428805650 is a wasteful number, since it uses less digits than its factorization.

428805650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 428805650 is about 20707.6229925117. The cubic root of 428805650 is about 754.0847643965.

The spelling of 428805650 in words is "four hundred twenty-eight million, eight hundred five thousand, six hundred fifty".